The Wrath of Khan

Ok, so I saw that movie AGAIN. I didn't really remember the story but could clearly see where it connected to the next one. I wonder whether they already had the script of the next one ready or whether they just thought of it at the end... whether the scene were Nimoy tells "bones" to remember and then walks into the Radioactive chamber to lift the globular top of goodness alone knows what and restart the Enterprise, was just thought of kind of impromptu.. I wonder. That particular scene reminded me of the old Ford Cortina that my dad used to have. How my brother and our driver, Jeet Bahadur, and the mechanic and a whole host of other people had tried at various times to bring that car back to life. However, it just died again. I think I only ever rode in it once, around the block. He sold it for about 2k. I guess it was worth a lot more... kinda like the Enterprise was to good old Tiberius (James T Kirk for all you unbelievers!)